Q$5.$ a$.$ An ISP got a classless IP slash $22$ address $100\mathrm{.}5$:$\frac{4\mathrm{.}0}{22}.$ What will be net mask. This ISP has to

distribute addresses to $7$ organizations with node demand as: $A-60,B-55,C-50,D-56,E-$

$49,$ F$-57,$ and G$-54.$ Give starting address of each organization with net mask and broadcast

address. How many addresses will we left with the ISP?